diff options
Diffstat (limited to 'hw/ppc_newworld.c')
| -rw-r--r-- | hw/ppc_newworld.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/hw/ppc_newworld.c b/hw/ppc_newworld.c new file mode 100644 index 0000000000..1379847219 --- /dev/null +++ b/hw/ppc_newworld.c @@ -0,0 +1,362 @@ +/* + * QEMU PowerPC CHRP (currently NewWorld PowerMac) hardware System Emulator + * + * Copyright (c) 2004-2007 Fabrice Bellard + * Copyright (c) 2007 Jocelyn Mayer + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#include "hw.h" +#include "ppc.h" +#include "ppc_mac.h" +#include "mac_dbdma.h" +#include "nvram.h" +#include "pc.h" +#include "pci.h" +#include "net.h" +#include "sysemu.h" +#include "boards.h" +#include "escc.h" + +#define MAX_IDE_BUS 2 +#define VGA_BIOS_SIZE 65536 + +/* debug UniNorth */ +//#define DEBUG_UNIN + +#ifdef DEBUG_UNIN +#define UNIN_DPRINTF(fmt, args...) \ +do { printf("UNIN: " fmt , ##args); } while (0) +#else +#define UNIN_DPRINTF(fmt, args...) +#endif + +/* UniN device */ +static void unin_writel (void *opaque, target_phys_addr_t addr, uint32_t value) +{ + UNIN_DPRINTF("writel addr " TARGET_FMT_plx " val %x\n", addr, value); +} + +static uint32_t unin_readl (void *opaque, target_phys_addr_t addr) +{ + uint32_t value; + + value = 0; + UNIN_DPRINTF("readl addr " TARGET_FMT_plx " val %x\n", addr, value); + + return value; +} + +static CPUWriteMemoryFunc *unin_write[] = { + &unin_writel, + &unin_writel, + &unin_writel, +}; + +static CPUReadMemoryFunc *unin_read[] = { + &unin_readl, + &unin_readl, + &unin_readl, +}; + +/* PowerPC Mac99 hardware initialisation */ +static void ppc_core99_init (ram_addr_t ram_size, int vga_ram_size, + const char *boot_device, + const char *kernel_filename, + const char *kernel_cmdline, + const char *initrd_filename, + const char *cpu_model) +{ + CPUState *env = NULL, *envs[MAX_CPUS]; + char buf[1024]; + qemu_irq *pic, **openpic_irqs; + int unin_memory; + int linux_boot, i; + ram_addr_t ram_offset, vga_ram_offset, bios_offset, vga_bios_offset; + uint32_t kernel_base, kernel_size, initrd_base, initrd_size; + PCIBus *pci_bus; + nvram_t nvram; +#if 0 + MacIONVRAMState *nvr; + int nvram_mem_index; +#endif + m48t59_t *m48t59; + int vga_bios_size, bios_size; + qemu_irq *dummy_irq; + int pic_mem_index, dbdma_mem_index, cuda_mem_index, escc_mem_index; + int ide_mem_index[2]; + int ppc_boot_device; + int index; + BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; + void *dbdma; + + linux_boot = (kernel_filename != NULL); + + /* init CPUs */ + if (cpu_model == NULL) + cpu_model = "default"; + for (i = 0; i < smp_cpus; i++) { + env = cpu_init(cpu_model); + if (!env) { + fprintf(stderr, "Unable to find PowerPC CPU definition\n"); + exit(1); + } + /* Set time-base frequency to 100 Mhz */ + cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); +#if 0 + env->osi_call = vga_osi_call; +#endif + qemu_register_reset(&cpu_ppc_reset, env); + envs[i] = env; + } + if (env->nip < 0xFFF80000) { + /* Special test for PowerPC 601: + * the boot vector is at 0xFFF00100, then we need a 1MB BIOS. + * But the NVRAM is located at 0xFFF04000... + */ + cpu_abort(env, "Mac99 hardware can not handle 1 MB BIOS\n"); + } + + /* allocate RAM */ + ram_offset = qemu_ram_alloc(ram_size); + cpu_register_physical_memory(0, ram_size, ram_offset); + + /* allocate VGA RAM */ + vga_ram_offset = qemu_ram_alloc(vga_ram_size); + + /* allocate and load BIOS */ + bios_offset = qemu_ram_alloc(BIOS_SIZE); + if (bios_name == NULL) + bios_name = BIOS_FILENAME; + snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name); + bios_size = load_image(buf, phys_ram_base + bios_offset); + if (bios_size < 0 || bios_size > BIOS_SIZE) { + cpu_abort(env, "qemu: could not load PowerPC bios '%s'\n", buf); + exit(1); + } + bios_size = (bios_size + 0xfff) & ~0xfff; + if (bios_size > 0x00080000) { + /* As the NVRAM is located at 0xFFF04000, we cannot use 1 MB BIOSes */ + cpu_abort(env, "Mac99 hardware can not handle 1 MB BIOS\n"); + } + cpu_register_physical_memory((uint32_t)(-bios_size), + bios_size, bios_offset | IO_MEM_ROM); + + /* allocate and load VGA BIOS */ + vga_bios_offset = qemu_ram_alloc(VGA_BIOS_SIZE); + snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); + vga_bios_size = load_image(buf, phys_ram_base + vga_bios_offset + 8); + if (vga_bios_size < 0) { + /* if no bios is present, we can still work */ + fprintf(stderr, "qemu: warning: could not load VGA bios '%s'\n", buf); + vga_bios_size = 0; + } else { + /* set a specific header (XXX: find real Apple format for NDRV + drivers) */ + phys_ram_base[vga_bios_offset] = 'N'; + phys_ram_base[vga_bios_offset + 1] = 'D'; + phys_ram_base[vga_bios_offset + 2] = 'R'; + phys_ram_base[vga_bios_offset + 3] = 'V'; + cpu_to_be32w((uint32_t *)(phys_ram_base + vga_bios_offset + 4), + vga_bios_size); + vga_bios_size += 8; + } + + if (linux_boot) { + kernel_base = KERNEL_LOAD_ADDR; + /* now we can load the kernel */ + kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base); + if (kernel_size < 0) { + cpu_abort(env, "qemu: could not load kernel '%s'\n", + kernel_filename); + exit(1); + } + /* load initrd */ + if (initrd_filename) { + initrd_base = INITRD_LOAD_ADDR; + initrd_size = load_image(initrd_filename, + phys_ram_base + initrd_base); + if (initrd_size < 0) { + cpu_abort(env, "qemu: could not load initial ram disk '%s'\n", + initrd_filename); + exit(1); + } + } else { + initrd_base = 0; + initrd_size = 0; + } + ppc_boot_device = 'm'; + } else { + kernel_base = 0; + kernel_size = 0; + initrd_base = 0; + initrd_size = 0; + ppc_boot_device = '\0'; + /* We consider that NewWorld PowerMac never have any floppy drive + * For now, OHW cannot boot from the network. + */ + for (i = 0; boot_device[i] != '\0'; i++) { + if (boot_device[i] >= 'c' && boot_device[i] <= 'f') { + ppc_boot_device = boot_device[i]; + break; + } + } + if (ppc_boot_device == '\0') { + fprintf(stderr, "No valid boot device for Mac99 machine\n"); + exit(1); + } + } + + isa_mem_base = 0x80000000; + + /* Register 8 MB of ISA IO space */ + isa_mmio_init(0xf2000000, 0x00800000); + + /* UniN init */ + unin_memory = cpu_register_io_memory(0, unin_read, unin_write, NULL); + cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory); + + openpic_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *)); + openpic_irqs[0] = + qemu_mallocz(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB); + for (i = 0; i < smp_cpus; i++) { + /* Mac99 IRQ connection between OpenPIC outputs pins + * and PowerPC input pins + */ + switch (PPC_INPUT(env)) { + case PPC_FLAGS_INPUT_6xx: + openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB); + openpic_irqs[i][OPENPIC_OUTPUT_INT] = + ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]; + openpic_irqs[i][OPENPIC_OUTPUT_CINT] = + ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]; + openpic_irqs[i][OPENPIC_OUTPUT_MCK] = + ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_MCP]; + /* Not connected ? */ + openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL; + /* Check this */ + openpic_irqs[i][OPENPIC_OUTPUT_RESET] = + ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_HRESET]; + break; +#if defined(TARGET_PPC64) + case PPC_FLAGS_INPUT_970: + openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB); + openpic_irqs[i][OPENPIC_OUTPUT_INT] = + ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT]; + openpic_irqs[i][OPENPIC_OUTPUT_CINT] = + ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT]; + openpic_irqs[i][OPENPIC_OUTPUT_MCK] = + ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_MCP]; + /* Not connected ? */ + openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL; + /* Check this */ + openpic_irqs[i][OPENPIC_OUTPUT_RESET] = + ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_HRESET]; + break; +#endif /* defined(TARGET_PPC64) */ + default: + cpu_abort(env, "Bus model not supported on mac99 machine\n"); + exit(1); + } + } + pic = openpic_init(NULL, &pic_mem_index, smp_cpus, openpic_irqs, NULL); + pci_bus = pci_pmac_init(pic); + /* init basic PC hardware */ + pci_vga_init(pci_bus, phys_ram_base + vga_ram_offset, + vga_ram_offset, vga_ram_size, + vga_bios_offset, vga_bios_size); + + /* XXX: suppress that */ + dummy_irq = i8259_init(NULL); + + escc_mem_index = escc_init(0x80013000, dummy_irq[4], dummy_irq[5], + serial_hds[0], serial_hds[1], ESCC_CLOCK, 4); + + for(i = 0; i < nb_nics; i++) + pci_nic_init(pci_bus, &nd_table[i], -1, "ne2k_pci"); + + if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) { + fprintf(stderr, "qemu: too many IDE bus\n"); + exit(1); + } + for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) { + index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); + if (index != -1) + hd[i] = drives_table[index].bdrv; + else + hd[i] = NULL; + } + dbdma = DBDMA_init(&dbdma_mem_index); +#if 1 + ide_mem_index[0] = pmac_ide_init(&hd[0], pic[0x13], dbdma, 0x14, pic[0x01]); + ide_mem_index[1] = pmac_ide_init(&hd[2], pic[0x14], dbdma, 0x16, pic[0x02]); +#else + pci_cmd646_ide_init(pci_bus, &hd[0], 0); +#endif + /* cuda also initialize ADB */ + cuda_init(&cuda_mem_index, pic[0x19]); + + adb_kbd_init(&adb_bus); + adb_mouse_init(&adb_bus); + + + macio_init(pci_bus, PCI_DEVICE_ID_APPLE_UNI_N_KEYL, 0, pic_mem_index, + dbdma_mem_index, cuda_mem_index, NULL, 2, ide_mem_index, + escc_mem_index); + + if (usb_enabled) { + usb_ohci_init_pci(pci_bus, 3, -1); + } + + if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) + graphic_depth = 15; +#if 0 /* XXX: this is ugly but needed for now, or OHW won't boot */ + /* The NewWorld NVRAM is not located in the MacIO device */ + nvr = macio_nvram_init(&nvram_mem_index, 0x2000, 1); + pmac_format_nvram_partition(nvr, 0x2000); + macio_nvram_map(nvr, 0xFFF04000); + nvram.opaque = nvr; + nvram.read_fn = &macio_nvram_read; + nvram.write_fn = &macio_nvram_write; +#else + m48t59 = m48t59_init(dummy_irq[8], 0xFFF04000, 0x0074, NVRAM_SIZE, 59); + nvram.opaque = m48t59; + nvram.read_fn = &m48t59_read; + nvram.write_fn = &m48t59_write; +#endif + PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "MAC99", ram_size, + ppc_boot_device, kernel_base, kernel_size, + kernel_cmdline, + initrd_base, initrd_size, + /* XXX: need an option to load a NVRAM image */ + 0, + graphic_width, graphic_height, graphic_depth); + /* No PCI init: the BIOS will do it */ + + /* Special port to get debug messages from Open-Firmware */ + register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL); +} + +QEMUMachine core99_machine = { + .name = "mac99", + .desc = "Mac99 based PowerMAC", + .init = ppc_core99_init, + .ram_require = BIOS_SIZE + VGA_BIOS_SIZE + VGA_RAM_SIZE, + .max_cpus = MAX_CPUS, +}; |